Liquid-Metal-Templated Synthesis of 2D Graphitic Materials at Room Temperature.,Advanced Materials

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Liquid-Metal-Templated Synthesis of 2D Graphitic Materials at Room Temperature.
Advanced Materials ( IF 27.4 ) Pub Date : 2020-06-08 , DOI: 10.1002/adma.202001997
Mohannad Mayyas ₁ , Hongzhe Li ₁ , Priyank Kumar ₁ , Mohammad B Ghasemian ₁ , Jiong Yang ₁ , Yifang Wang ₁ , Douglas J Lawes ₂ , Jialuo Han ₁ , Maricruz G Saborio ₁ , Jianbo Tang ₁ , Rouhollah Jalili ₁ , Sun Hwa Lee ₃ , Won Kyung Seong ₃ , Salvy P Russo ₄ , Dorna Esrafilzadeh ₅ , Torben Daeneke ₆ , Richard B Kaner _{7,

8} , Rodney S Ruoff _{3,

9,

10,

11} , Kourosh Kalantar-Zadeh ₁

Affiliation

School of Chemical Engineering, University of New South Wales (UNSW), Sydney, 2052, Australia.
Mark Wainwright Analytical Centre, University of New South Wales (UNSW), Sydney, 2052, Australia.
Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea.
School of Science, Royal Melbourne Institute of Technology (RMIT), Melbourne, 3001, Australia.
Graduate School of Biomedical Engineering, University of New South Wales (UNSW), Sydney, 2031, Australia.
School of Engineering, Royal Melbourne Institute of Technology (RMIT), Melbourne, 3001, Australia.
Department of Chemistry and Biochemistry and California NanoSystems Institute, University of California Los Angeles (UCLA), Los Angeles, CA, 90095, USA.
Department of Materials Science and Engineering and California NanoSystems Institute, University of California Los Angeles (UCLA), Los Angeles, California, 90095, USA.
Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea.
School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea.
School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea.

Room‐temperature synthesis of 2D graphitic materials (2D‐GMs) remains an elusive aim, especially with electrochemical means. Here, it is shown that liquid metals render this possible as they offer catalytic activity and an ultrasmooth templating interface that promotes Frank–van der Merwe regime growth, while allowing facile exfoliation due to the absence of interfacial forces as a nonpolar liquid. The 2D‐GMs are formed at low onset potential and can be in situ doped depending on the choice of organic precursors and the electrochemical set‐up. The materials are tuned to exhibit porous or pinhole‐free morphologies and are engineered for their degree of oxidation and number of layers. The proposed liquid‐metal‐based room‐temperature electrochemical route can be expanded to many other 2D materials.

中文翻译：

室温下液态金属模板化2D石墨材料的合成。

室温合成2D石墨材料（2D-GM）仍然是一个遥不可及的目标，尤其是采用电化学手段时。此处显示，液态金属使之成为可能，因为液态金属提供催化活性和超光滑的模板界面，从而促进了Frank-van der Merwe态的生长，同时由于没有作为非极性液体的界面力而允许剥离。2D-GMs的起始电位低，可以根据有机前体的选择和电化学设置进行原位掺杂。对材料进行了调整，使其具有多孔或无针孔的形态，并针对其氧化程度和层数进行了设计。提议的基于液态金属的室温电化学途径可以扩展到许多其他2D材料。

更新日期：2020-07-21

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